12609017 has 4 divisors (see below), whose sum is σ = 12916596. Its totient is φ = 12301440.

The previous prime is 12609013. The next prime is 12609029. The reversal of 12609017 is 71090621.

12609017 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1692601 + 10916416 = 1301^2 + 3304^2 .

It is a cyclic number.

It is not a de Polignac number, because 12609017 - 2² = 12609013 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12609013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153728 + ... + 153809.

It is an arithmetic number, because the mean of its divisors is an integer number (3229149).

Almost surely, 2^12609017 is an apocalyptic number.

It is an amenable number.

12609017 is a deficient number, since it is larger than the sum of its proper divisors (307579).

12609017 is an equidigital number, since it uses as much as digits as its factorization.

12609017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307578.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 12609017 is about 3550.9177686902. The cubic root of 12609017 is about 232.7521725317.

Adding to 12609017 its reverse (71090621), we get a palindrome (83699638).

The spelling of 12609017 in words is "twelve million, six hundred nine thousand, seventeen".